CINCINNATI, Feb. 23 (UPI) -- Hillary Clinton, preparing for do-or-die primaries, went after Barack Obama at an Ohio rally Saturday, accusing him of following "Karl Rove's playbook."

Speaking to a crowd at a community college in Cincinnati, Clinton said the Obama campaign had sent out "false and discredited mailings" on her healthcare proposal, CBS reported.

"So, shame on you Barack Obama," she chastised.

The rivals for the Democratic presidential nomination are almost even on delegate numbers. But Clinton, after trailing Obama in 11 straight caucuses or primaries, must do well in both Texas and Ohio March 4.

"Just because Sen. Obama chose not to present a universal healthcare plan does not give him the right to attack me because I did," Clinton said. "So let's have a real campaign. Enough with the speeches and the big rallies and then using tactics that are right out of Karl Rove's playbook. This is wrong and every Democrat should be outraged."

Obama campaign spokesman Bill Burton maintained the mailings were "completely accurate" and said in a statement that Obama looks forward to their debate Tuesday.

Burton said Clinton supported NAFTA and the China trade treaties "until this campaign began" and claimed her health insurance plan costs would hit Americans "whether they can afford it or not."

Sri Lankan rebel violence intensifies

COLOMBO, Sri Lanka, Feb. 23 (UPI) -- A Tamil Tiger rebel camp was targeted by the Sri Lankan military Saturday, resulting in 51 deaths, as violence in the Asian country intensified.

The Defense Ministry said Saturday's assault in the northeastern portion of the country included both aerial and ground military forces and left 42 Tamil Tigers dead, the Colombo Page Web site reported.

The death toll brought the total number of rebels killed since Friday to 51, Colombo Page said.

While government-led forces targeted Tamil Tiger strongholds, the rebel group was suspected of bombing a bus Saturday outside Colombo, leaving 18 people injured, the Sri Lankan newspaper reported.

Sources said if passengers had not noticed a suspicious parcel, prompting an immediate evacuation, Saturday's bombing undoubtedly would have resulted in fatalities.

Israeli forces kill 3 suspected militants

JERUSALEM, Feb. 23 (UPI) -- Three suspected Palestinian militants allegedly set to launch a rocket attack on Israel were killed Saturday by Israeli forces in the Gaza Strip.

Israeli troops operating in the northern portion of the Gaza Strip encountered the suspected militants and the resulting firefight left three Palestinians dead and another five wounded, Ynetnews reported.

Those wounded in the attack reportedly received light to moderate injuries.

While Israeli officials allege those killed or injured were preparing to fire rockets at Israel, some Palestinians deny that was the case. They allege the victims were actually Palestinian bankers simply holding a picnic.

Meanwhile, near the al-Bureij refugee camp in the Gaza Strip Friday, two suspected members of the military wing of the Islamic Jihad, the al-Quds Brigades, were killed during an Israeli airstrike of a suspected terrorist site.

Turkey reports dozens killed in Iraq

ANKARA, Turkey, Feb. 23 (UPI) -- Turkish military officials say fire from ground troops and helicopter gunships have killed 79 Kurdish rebels in northern Iraq.

Turkey's army also reported seven Turkish soldiers died in Friday's incursion against members of the Kurdistan Workers' Party, the PKK, Sky News reported Saturday. Earlier, a PKK spokesman said five of its members had been wounded and 22 Turkish soldiers killed. Neither report could be independently confirmed.

The United States and the United Nations have urged Turkey to use restraint during the incursion, which Turkish Prime Minister Tayyip Erdogan called limited in scale, the BBC reported.

"The target, purpose, size and parameters of this operation are limited," Erdogan said on Turkish television. "Our armed forces will come back in the shortest time possible as soon as they achieve their objectives" against the PKK.

More than 30,000 people have been killed since the PKK began fighting for an independent Kurdish homeland in southeastern Turkey in 1984. The PKK's main hideouts are in northern Iraq near the Turkish border.